# Betting Odds Calculator & Converter

If a parlay includes three events, you’ll need to multiply the odds of the first part of the wager before rolling the initial stake and the winnings into the next part of the parlay. A seven-bet parlay would involve the multiplication of seven individual results, rolling each of the previous wagers into the next. Implied probability can be paired with odds, as odds correlate official source with the chance of a team winning. In the case of gambling, the implied probability is a percentage chance that will predict how likely a team is to win. John Larry Kelly Jr. was a scientist who figured out a way to determine an optimal betting amount according to bankroll and the type of odds you face when sports betting. Since pros tend to work with a long-term strategy, a Kelly Calculator helps to determine a standard betting amount which performs well.

## What Happens If You Bet \$100 On A +140 Money Line?

American odds are used in the US and Canada, informative post while decimal odds are used in Europe and Australasia. You’ll find fractional odds in the United Kingdom and Ireland. But our betting odds calculator will allow you to use all three.

## How To Convert Decimal Odds To Probability

The -145 means you will win £100 for every £145 you stake. So, if you were to place a £10 bet it would return £16.90 – your £10 stake and £6.90 profit (calculated as £10/£145 x 100). Although betting odds can look confusing at first, our complete guide will make sure you have the knowledge of how they work and can make more informed choices when gambling online. That is quite simple, the bookmaker or betting provider wants to earn money, of course.

You will also find below an overview of the most popular bet types and markets to add to your knowledge when you are weighing up a wager. The next step is for us to multiply our decimal odds together. This is where our pocket calculator comes in handy, but if you’re a math whiz you can feel free to rely on your brain power if you want to do so.

This is because these factors are based on the sum of 100. If the ratio is negative, it shows what amount must be wagered to win 100. -200 Should bet 200 to win 100, which corresponds to 1.50 decimal odds. If the odds is positive, it shows how much you could win if you bet 100.

The odds on display never reflect the true probability or chance of an event occurring . For example, a bookmaker has the odds of Man City defeating Crystal Palace at 8/13. Plug the numbers into the formula, which is a simple matter of dividing 8 by 13 in this example, and the implied probability equals 61.5%.

Avoid accumulates and multiple outcomes bets where possible, only bet this way if this is they wager you want to place. In play markets are suspended all of the time during dangerous scenarios. You need to be patient and try to out your wagers on during passive passages of play. Each time you place a live bet there is a delay and if the odds change or the market is suspended during this time again there is nothing you can do. You need to remember a bookmaker is a private business and they can in effect do what they like when it comes to their odds. If a bookie doesn’t like the way the betting is going or they are becoming over exposed on one outcome they can drop the odds dramatically or event suspend the market or the whole book.

On the other hand, you’d win a more considerable \$8 against every \$5 put at stake for Seabiscuit to win, which is more profitable but less probable. In both instances, you would get your original wager back and whatever extra you’ve won. However, the system widens the difference between the odds for the favorite and the underdog as the probability of the favorite winning increases. More specifically, 6/1 (six-to-one) odds would indicate that on top of winning back what you wager, you’d also win \$6 against every \$1. Most commonly used in the UK and popular around the world, fractional odds can be written with a slash (/) or hyphen (-). American odds, also known as money line odds, indicate return relative to a hundred unit base figure.